A people traffic jam that occurrs in subway tunnels and bus stations. Caused by inconsiderate workaholics walking too slow while their noses are glued to their Blackberry device.
by bratina August 30, 2005
by missleah97 January 13, 2012
When 3 or more people are in a meeting, not talking to each other, but are all checking, emailing or talking on their blackberries.
We had a few topics we needed to discuss in the departmental meeting, however it turned into a Blackberry Jam
by Tommireed February 19, 2009